Improvement in combination locks



F. -B. KALKBRENNBR. coMBINATIoN 1.00K.

No. 108,360. Patented Oct. 18, 1870.

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t Per 7mm% dnited hgiante- FRIEDERIOH B. KALKBRENNER, OIIV CLINTON, MISSOURI.

Letters Patent No. 108,360. dated October 18, 1-870.

IMPROVEMENT IN COMBINATION vLOOKS.

The Schedule referred'to in these'Letters Patent and making part of thelame.

publican improvement in the relative constructionand'adjnstment of the parts of a. permutation lock.

I will iirst describe Ury-invention, in connection with all that is necessary to a full understanding thereof', and then clearly point it out in my claim.

l Figure 1 is a sectional elevation of my improved -Iock,'and y Figure 2 is a horizontal'seetion ot' the same.

Similar letters of reference indicate corresponding parts. y

vArepresent-s threeor more disks, of uniform -diameter, having vsbaped'faces; and

' B represents end-disks, of larger diameter than the others, and with one beveled wall, G, formed to correspondv in shape and size with the half oi'` the face of the disk next to it.A ,4

All these disks are to be connected together by rods, D, or other equivalent devices.

One disk B has a mortise, E, through it, near the periphery, and the disks A have notches, F, across the face, which correspond with the mort-isc E; theother disk B hasa mortise or notch part way through it, on the line of the mortise E. y

G represents -rings, having V-shaped inne-r faces, and suitably shaped to lit on the disks A, with the K to be inserted in the socket formed by the said notches.

This bar has V-shaped notches, which will allow the rings to be turned when it is shoved home, and, therings being turned so that the V-faces cross the bar in the notches thereof', lock the bar s'o that it. cannot be drawn out.

The notches of, all the rings must coincide with the notches 'of the disksbetore the bar can be drawn o'ut, and thiscannot be readily brought about wit-hout the aid of a knowledge of the figures on the peripheries of' the rings, which indicate whenY they are so.

The rings Gare put on as each disk Ais applied, one after the other, the first disk A being applied to one end-disk B, and the other end-disk being applied after the last disk'A. 'lhewhole are `'then secured by the rods D, or by other suitable means.

By this arrangement, the lock may be very cheaply constructed.

Having thus described my invention,

I claim as new, and desire to secure by Detters Ilatent- Iu-a pennntation-loek, the V-shaped plates A, V- shaped rings G, and correspondinglyconstruoted disks B B, eombined,' and adjusted togethe'r as and for the purpose described.

FRIEDERIOH BV` KALKBRENNER.

\Vitn esses:

GEORGE Benz, S. B. HoLcoMB. 

